| 摘要 |
<p>A macro illumination device comprises a light source (23), a Fresnel lens (24) for converging illumination light outputted from the light source (23), a liquid crystal diffusing plate (25) for switching between diffusion of illumination light and transmission there of, an illumination-area movement mechanism (28) moving an illumination box (22) containing an exit end of a glass fiber (26) and the Fresnel lens (24) in an integrated manner to move a macro illumination area (W) on a face of a glass base plate (3).</p> |
